Increasingly expensive dental care costs are forcing seniors to bite down hard—and head to Mexico to preserve their pearly whites, the Associated Press reports.

Nearly 70 percent of seniors do not have dental insurance, according to a 2013 Harris Interactive survey commissioned by Oral Health America. Medicare does not cover dental care, and many employers do not offer post-retirement health benefits. You can get dental coverage through the Affordable Care Act, but only if you purchase general health coverage first. (Many seniors already have that coverage.)

Even with coverage, crowns, bridgework, implants and dental surgery can easily exceed the annual limit. As a result, seniors who need extensive dental work may have limited options and could face out-of-pocket costs running into the thousands or tens of thousands of dollars; 23 percent of seniors in the Oral Health America survey said they have not seen a dental provider in five years.

Just as people traveled to Canada to buy their prescription drugs at lower cost or traveling the world for other medical services and procedures, more Americans are now flocking to places like Los Algodones, Mexico for dental care. Dental care in Mexico is much cheaper, thanks to lower labor costs and fewer regulatory requirements — factors that you should keep in mind before heading south of the border. The dentists in Mexico maintain that they may not have as much education as their American counterparts, but they spend more time practicing clinical work.

It’s not just people who live in border cities like El Paso, Texas crossing the border to take care of their teeth. The Associated Press reports that shuttle services exist to take dental patients from the Phoenix area to Los Algodones, a 200-mile trip.

Before you book a trip, though, remember that should something go wrong you may not have the same legal recourse as in the U.S., and the dentists may use different types of equipment--so do your research first.

National Economic Council Director Gary Cohn said Monday that tax reform has to happen this year, even if it means Congress has to stay in session longer. "I think we have a unique window in time right now, but unfortunately we keep losing days to this window,” he said. “The opportunity is now." House Speaker Paul Ryan said last week he’d keep members over Christmas if that’s what it takes. And Ryan predicted Monday that tax reform would pass the House by early next month and then get through the Senate to reach the president’s desk by the end of the year. But there are plenty of skeptics out there, given the hurdles. Issac Boltansky, an analyst at the investment bank Compass Point, told Business Insider, "The idea of getting tax reform done this year is a farcical fantasy. Lawmakers have neither the time nor the capacity to formulate and clear a tax reform package in 2017."

Passing a budget resolution for 2018 through the Senate will open a procedural door to a $1.5 trillion tax cut over 10 years. The resolution is expected to reach the Senate floor this week, although there are questions about whether Republicans have the 50 votes they need to pass it. Sens. Susan Collins (R-ME) said this weekend that she would vote for it and Lisa Murkowski (R-AK) is likely a “yes” as well, but Sen. Rand Paul (R-TN) is reportedly a likely “no” and John McCain (R-AZ) appears questionable. Now it looks like Sen. Thad Cochran (R-MI) won't be back in Washington this week to vote on the resolution due to health problems. The Hill says Cochran’s absence puts tax reform “on knife’s edge.”

Trump and the GOP still have work to do if they want to convince Americans that their tax plan won’t mostly help the rich. A CBS News Nation Tracker poll released Sunday finds that 58 percent say the tax reforms being discussed favor the wealthy, while 19 percent say it treats everyone equally and 18 percent say it favors the middle class.

The poll also found that 39 percent say that cutting the deficit should be a priority, even if it means taxes stay the same. About half as many people said cutting taxes should be prioritized even if the deficit rises.

The poll, conducted by YouGov, surveyed 2,371 U.S. adults between October 11 and 13. Its margin of error is 2.5 percent.